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  • mysql join on two indexes takes long time!!

    - by Alaa
    Hi All I have a custom query in dripal, this query is: select count(distinct B.src) from node A, url_alias B where concat('node/',A.nid)= B.src; now, nid in node is primary key and i have made src as an index in url_alias table. after waiting for more than a minute i got this: +-----------------------+ | count(distinct B.src) | +-----------------------+ | 325715 | +-----------------------+ 1 row in set (1 min 24.37 sec) now my question is: why did this query take this long, and how to optimize it?? Thanks for your help

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  • How many indexes will actually get used?

    - by Ender
    I'm writing a page that does very simple search queries, resulting in something like: SELECT * FROM my_table WHERE A in (a1, a2, a3) AND B in (b1, b2) AND C in (c1, c2, c3, c4) AND And so on for a variable number of columns, usually ~5. If I create a separate index for each column (one for A, one for B, one for C, not (A,B,C)), will all of them be used in the above query?

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  • Is there an image phase correlation library available for Python?

    - by kamasudra
    A project that involves image processing, i.e. to calculate the angular shift of the same image when shifted by a medium of certain Refractive Index. We have to build an app that correlates the 2 images (phase/2D correlation?) and then plot using Chaco and Mayavi (2 libraries in Python). Is there any other existing template software (FOSS) that we can base our app on, or use it as a reference?

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  • ui header is blocking a div

    - by Tumharyyaaden
    i have built jQuery drop-down menu which is having problems floating over the UI header. Flash and everything else is fine, menu has no problem floating over anything except UI headers, i have tried messing with z-index in css files but it seems that jQuery script is over writing all of my css. the JS files are minified so i can not edit them. I think a JS solution is necessary but i do not know how to solve this with JS. URL: http://patel.mine.nu/live%20site/metanoia/

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  • Reading cookie problem across directories

    - by Etienne
    This is my JavaScript code I use to create my cookie............ document.cookie = "Name=" + Name + ";expires=Friday, 31-Dec-2011 12:00:00 GMT; path/"; I create it in www.example.com/folder/file.html and it works. But I cant read the cookie from www.example.com/index.html or www.example.com/folder2/file2.html. What is wrong with my code? Thanks in advanced

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  • How to redirect by checking for a particular previous url

    - by Bearish_Boring_dude
    I have the following piece of code in my controller def index session[:previous_url] = URI(request.referer).path if session[:previous_uri] != new_path redirect_to registration_path(id: current_user.associate_username) end end However this does not actually work and i get a bad URI error. I just want to check if the request came from a particular page and if not redirect it to another page. I would also like to know if there is a better way for doing this?.Thank you

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  • Valid content-type for XML, HTML and XHTML documents

    - by astropanic
    What are correctly content-types for this documents ? I need to write a simple crawler, that only fetches this kind of files. Nowadays http://somedomain.com/index.html can serve for example an JPEG file due to mod_rewrite, so I need to check the content-type from the response header and compare it with a list of allowed content-types. From where I can get such list ?

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  • Video playback with jQuery Mobile and Phonegap

    - by aritchie
    I'm fairly new to mobile apps, so am trying to knock up a simple video player using Phonegap and jQuery Mobile. The problem is, jQuery mobile appears to be blocking the video playback for some reason. To troubleshoot I stripped it right back to the following HTML, but get the same result, ie a black rectangle where the video should be, but no video playback or controls. <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta name="viewport" content="width=device-width,initial-scale=1"/> <link rel="stylesheet" type="text/css" href="css/index.css" /> <link rel="stylesheet" href="css/jquery.mobile-1.2.0.min.css" /> <script type="text/javascript" src="cordova-2.2.0.js"></script> <script type="text/javascript" src="js/index.js"></script> <script src="js/jquery-1.8.3.min.js"></script> <script src="js/jquery.mobile-1.2.0.js"></script> <title></title> </head> <body> <div> <video controls autoplay> <source src="video/video1.mp4" type="video/mp4" > </video> </div> </body> </html> If I remove the link to jquery.mobile-1.2.0.js the video shows up and plays, otherwise, just the black rectangle. I don't know jQuery mobile at all, but searching in the js for a reference to the video elements doesn't show up, so I've no idea what is blocking it. The code works fine in Chrome and Firefox. There are no console messages in Xcode. I also tried hooking up to http://debug.phonegap.com/ but this gave no error messages either. Any ideas??

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  • Drawbacks of using an integer as a bitfield?

    - by Mark
    I have a bunch of boolean options for things like "accepted payment types" which can include things like cash, credit card, cheque, paypal, etc. Rather than having a half dozen booleans in my DB, I can just use an integer and assign each payment method an integer, like so PAYMENT_METHODS = ( (1<<0, 'Cash'), (1<<1, 'Credit Card'), (1<<2, 'Cheque'), (1<<3, 'Other'), ) and then query the specific bit in python to retrieve the flag. I know this means the database can't index by specific flags, but are there any other drawbacks?

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  • Redirect to current view on error in asp.net mvc?

    - by Pandiya Chendur
    I use TempData["message"] which internally uses session.... It works for me but when i do a return RedirectToAction("Create"); my other values are not restored because i am redirecting to Create view... Any suggestion how to retain the values of textboxes in the view..... if (!regrep.registerUser(reg)) { TempData["message"] = string.Format("{0} already exists", reg.EmailId); return RedirectToAction("Create"); } else { return RedirectToAction("Index"); }

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  • C#: How to replace "-" with " -" only when it's not preceded by "e"?

    - by MaDDoX
    I imagine I should use Regex for that but I still scratch my head a lot about it (and the only similar question I found wasn't exactly my case) so I decided to ask for help. This is the input and expected output: Input: "c-0.68219,-0.0478 -1.01455-0.0441 0.2321e-4,0.43212" Output:"c -0.68219,-0.0478 -1.01455 -0.0441 0.2321e-4,0.43212" Basically I need either commas or spaces as value separators, but I can't break the exponential index (e-4). Maybe do two successive replacements?

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  • Problem While Deploying Application in GlassFish

    - by Sarang
    I have to deploy an application named "mrs-ws-server.war" in glassfish. I did it using both : 1) Package File to be uploaded to the server 2) Local package File or Directory at the address : http://localhost:42328/common/index.jsf It generates the following error : Exception while loading the app : java.lang.Exception: java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection What should be the solution for the same ?

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  • C#:checking existing record in database Mysql

    - by Meko
    HI.I searched this question inform and I found solution to change column property Unique Index.Now If I try to insert same record cmd.ExecuteNonQuery() gives error that record exist ,but how can use this exception to give user a message that record exist and must enter new one ? I am trying to make some thing like if(cmd.ExecuteNonQuery() !=true ) { MessageBox.Show("User Exists"); } But I dont know what returns cmd.ExecuteNonQuery() ? Or I must get records using reader in table and compare them with text in Textfiel?

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  • Amazon Product Advertising API: XXX is not a valid value for BrowseNodeId

    - by Chris
    Hello, I am using the Amazon product Advertising API to fetch the product categories. For US categories it is working. But using browse nodes from different sites I get the following error: "569604 is not a valid value for BrowseNodeId. Please change this value and retry your request." I got the browse-nodes from the following site: http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/index.html?BrowseNodeIDs.html Where is the problem? Thanks for your help!

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  • How do I edit .htaccess to allow both rails and wordpress requests?

    - by jakefuentes
    I want to run an instance of wordpress within my rails app. I currently have wordpress files housed in public/wordpress, but I need to configure my .htaccess file to allow both types of requests. How do I do that? currently, .htaccess is: General Apache options AddHandler fcgid-script .fcgi RewriteEngine On RewriteRule ^$ index.html [QSA] RewriteRule ^([^.]+)/!$ $1.html [QSA] RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ dispatch.fcgi [QSA,L] ErrorDocument 500 "Application error Application failed to start properly"

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  • having trouble with a mod_rewrite rule

    - by Jeff
    want to rewrite urls like site.com/software to wp-content/themes/dir/software.php and something is not working.. Here's what I have: RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] RewriteRule ^software wp-content/themes/dir/software.php [L] Thanks!

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  • Strange lifecycle behaviour with f:ajax and valueChangedListener

    - by gerry
    I want to use the f:ajax tag to update a part of a page with a editor gui, which style depends on a selectOneMenu and its selected item. The problem is, that if the ajax is called the server first renders the editor and then executes the valueChangedListener method. In my JSF2.0 / Facelets app I've the following code: ... <h:selectOneMenu id="typeSelect" validator="#{addEntityBean.checkType}" value="#{addEntityBean.selectedTypeAsString}" valueChangeListener="#{addEntityBean.selectedTypeChanged}"> <f:ajax render="editorGrid"/> <f:selectItems value="#{addEntityBean.entityTypeListAsString}"/> </h:selectOneMenu> ... <h:panelGrid id="editorGrid" columns="2" binding="#{addEntityBean.dynamicEditorGrid}" /> The BackingBean code looks like this: public String getSelectedTypeAsString() { return selectedTypeAsString; } public void setSelectedTypeAsString(String selectedType) { this.selectedTypeAsString = selectedType; } public Class<? extends Entity> getSelectedType() { log.severe("getSelectedType"); Class<? extends Entity> res = null; if(selectedTypeAsString != null){ int index = entityTypeListAsString.indexOf(selectedTypeAsString); res = entityTypeList.get(index); } return res; } public void selectedTypeChanged(ValueChangeEvent event){ setSelectedTypeAsString((String)event.getNewValue()); Class<? extends Entity> clazz = getSelectedType(); if(clazz != null){ try { setEntity(clazz.newInstance()); } catch (Exception e) { log.severe(e); } } else{ setEntity(null); } } public HtmlPanelGrid getDynamicEditorGrid() { HtmlPanelGrid grid = DynamicHtmlComponentCreator.createHtmlPanelGrid(); Entity entity = getEntity(); if(entity != null){ log.severe("getEntity() -->"+entity.getClassName()); grid = (HtmlPanelGrid)buildGui(grid, entity, "entityBean.entity", false); } else log.severe("getEntity() --> null"); return grid; } The problem is, that the server logs show that at first the getDynamicEditorGrid() is executed. And later the selectedTypeChanged()-listener-method. So everytime the selected editor style type is update one selection later. I.e. after a page reload (the type is initally null) the user selects the A, now the getDynamicEditorGrid() is executed again with type null and after that the type is changed to A. Again the user selects now B (after A) and now the getDynamicEditorGrid() is executed with the type A and after that the type is changed to B. What is wrong with my code? How can I fix this really strange behavior...

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  • Using tinybutstrong templating system, how do I have a (secondary) mysql query (sub-block), inside a

    - by desbest
    This is the code that works well. $TBS->MergeBlock("items",$conn,"SELECT * FROM items WHERE categoryid = $getcategory"); and it has a good job of looping the items with no problem. <tr id="itemid_[items.id;block=tr]"> <td height="30"> <!-- <img src="move.png" align="left" style="margin-right: 8px;"> --> <div class="lowlight">[items.title] </div> </td> <td height="30"> <div class="editable" itemid="$item[id]">[items.quantity]</div> </td> <td height="30"> <!-- <img src="pencil.png" id="edititem"width="24" height="24"> --> &nbsp; &nbsp; &nbsp; &nbsp;<img src="icons/folder.png" id="category_[items.categoryid]";" class="changecategory" categoryid="[items.categoryid]" itemid="[items.id]" itemtitle="[items.title]" title="Change category" width="24" height="24"> &nbsp; &nbsp; &nbsp; &nbsp; <a href="index.php?category=[var.getcategory]&deleteitem=[items.id]" title="Delete item" onclick="return confirm('Are you sure you want to delete [items.title]?')"><img src="icons/trash.png" id="deleteitem" width="24" height="24"></a> </td> </tr> This is where the problem lies. In the table row I would like a secondary mysql merge block based on the id column that the primary (items) mysql table has. This means that ideally I would love to do this. $TBS->MergeBlock("fields",$conn,"SELECT * FROM items WHERE categoryid = [items.id]"); So then when I used [fields.value;block=div] inside the table row, it would pick up the a row from the fields table based on the primary mysql query. It would recognise what the id is for the merged block and perform a mysql query based on a variable that that block has. So that's what I would like to do and that's what I call a secondary mysql merge block. This is what I attempted by using the sub-blocks example and modifying it. index.html <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>TinyButStrong - Examples - subblocks</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <link href="tbs_us_examples_0styles.css" rel="stylesheet" type="text/css"> <style type="text/css"> <!-- .border02 { border: 2px solid #39C; } .border03 { border: 2px solid #396; } --> </style> </head> <body> <table width="400" align="center" cellpadding="5" cellspacing="0" style="border-collapse:collapse;"> <tr> <td class="border02"><strong>Item name:</strong> [item.title;block=tr] , <strong>Item quantity:</strong> [item.quantity]<br> <table border="1" align="center" cellpadding="2" cellspacing="0"> <tr bgcolor="#CACACA"> <td width="30"><u>Position</u></td> <td width="150"><u>Attribute</u></td> <td width="50"><u>Value</u></td> <td width="100"><div align="center"><u>Date Number</u></div></td> </tr> <tr bgcolor="#F0F0F0"> <td>[field.#]</td> <td>[field.attribute;block=tr;p1=[item.id]] <br><b>[item.id]</b> </td> <td><div align="right">[field.value]</div></td> <td><div align="center">[field.datenumber;frm='mm-dd-yyyy']</div></td> </tr> </table> </td> </tr> </table> </body> </html> index.php <?php require_once('../stockman-v3/tbs_class.php'); require_once('../stockman-v3/config.php'); // Create data $TeamList[0] = array('team'=>'Eagle' ,'total'=>'458'); //{ $TeamList[0]['matches'][] = array('town'=>'London','score'=>'253','date'=>'1999-11-30'); $TeamList[0]['matches'][] = array('town'=>'Paris' ,'score'=>'145','date'=>'2002-07-24'); $TeamList[1] = array('team'=>'Goonies','total'=>'281'); $TeamList[1]['matches'][] = array('town'=>'New-York','score'=>'365','date'=>'2001-12-25'); $TeamList[1]['matches'][] = array('town'=>'Madrid' ,'score'=>'521','date'=>'2004-01-14'); // } $TeamList[2] = array('team'=>'MIB' ,'total'=>'615'); // { $TeamList[2]['matches'][] = array('town'=>'Dallas' ,'score'=>'362','date'=>'2001-01-02'); $TeamList[2]['matches'][] = array('town'=>'Lyon' ,'score'=>'321','date'=>'2002-11-17'); $TeamList[2]['matches'][] = array('town'=>'Washington','score'=>'245','date'=>'2003-08-24'); // } $TBS = new clsTinyButStrong; $TBS->LoadTemplate('index3.html'); // Automatic subblock $TBS->MergeBlock("item",$conn,"SELECT * FROM items"); $TBS->MergeBlock("field",$conn,"SELECT * FROM fields WHERE itemid='[%p1%]' "); $TBS->MergeBlock('teamKEY',$TeamList); // Subblock with a dynamic query //$TBS->MergeBlock('match','array','TeamList[%p1%][matches]'); $TBS->MergeBlock("match",$conn,"SELECT * FROM fields WHERE id='[%p1%]' "); $TBS->Show(); ?> please note what i am trying to do If I was to change $TBS->MergeBlock("field",$conn,"SELECT * FROM fields WHERE itemid='[%p1%]' "); to... $TBS->MergeBlock("field",$conn,"SELECT * FROM fields"); It would show all the items.

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  • Find all occurrences of a substring in Python

    - by cru3l
    Python has string.find() and string.rfind() to get the index of a substring in string. I wonder, maybe there is something like string.find_all() which can return all founded indexes (not only first from beginning or first from end)? For example: string = "test test test test" print string.find('test') # 0 print string.rfind('test') # 15 #that's the goal print string.find_all('test') # [0,5,10,15]

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  • What does this URL structure mean?

    - by SteD
    Does this mean that it will be looking for index.php and provide the GET variable y with /home/xxx/public_html/control/&x=shell? http://www.xxx.com/control/?y=/home/xxx/public_html/control/&x=shell Long story: Website got defaced, and found this b374k script when browsing to one of the page, I am trying to figure out where exactly they injected this script, thus trying to figure out a hint from this url where the scripts resides in.

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  • Is there a way to efficiently yield every file in a directory containing millions of files?

    - by Josh Smeaton
    I'm aware of os.listdir, but as far as I can gather, that gets all the filenames in a directory into memory, and then returns the list. What I want, is a way to yield a filename, work on it, and then yield the next one, without reading them all into memory. Is there any way to do this? I worry about the case where filenames change, new files are added, and files are deleted using such a method. Some iterators prevent you from modifying the collection during iteration, essentially by taking a snapshot of the state of the collection at the beginning, and comparing that state on each move operation. If there is an iterator capable of yielding filenames from a path, does it raise an error if there are filesystem changes (add, remove, rename files within the iterated directory) which modify the collection? There could potentially be a few cases that could cause the iterator to fail, and it all depends on how the iterator maintains state. Using S.Lotts example: filea.txt fileb.txt filec.txt Iterator yields filea.txt. During processing, filea.txt is renamed to filey.txt and fileb.txt is renamed to filez.txt. When the iterator attempts to get the next file, if it were to use the filename filea.txt to find it's current position in order to find the next file and filea.txt is not there, what would happen? It may not be able to recover it's position in the collection. Similarly, if the iterator were to fetch fileb.txt when yielding filea.txt, it could look up the position of fileb.txt, fail, and produce an error. If the iterator instead was able to somehow maintain an index dir.get_file(0), then maintaining positional state would not be affected, but some files could be missed, as their indexes could be moved to an index 'behind' the iterator. This is all theoretical of course, since there appears to be no built-in (python) way of iterating over the files in a directory. There are some great answers below, however, that solve the problem by using queues and notifications. Edit: The OS of concern is Redhat. My use case is this: Process A is continuously writing files to a storage location. Process B (the one I'm writing), will be iterating over these files, doing some processing based on the filename, and moving the files to another location. Edit: Definition of valid: Adjective 1. Well grounded or justifiable, pertinent. (Sorry S.Lott, I couldn't resist). I've edited the paragraph in question above.

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  • Integrating Zend Controller Standalone - without the rest of Zend Framework

    - by ssmusoke
    I am using specific parts of the Zend Framework in my application, and I would like to replace my home grown controller with a Zend Framework controller. My home grown controller is based on an index.php file to which all requests are submitted. A controller is instantiated based on parameters sent within the request After processing the user is forwarded to url which is based on the request information, either a url is specified or some data is analysed I would like ideas on how to integrate the Zend Controller within my application Thanks in advance

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